Why is a Nvidia Single Board computer less than ideal for AI model training?
Jetson Nano specs Price:$99:


  128-core Maxwell GPU 
  
  Quad-core ARM A57 @ 1.43 GHz 
  
  472 GFLOPS max
   compute


Titan V(for example) Price:$2500 :


  640 tensor cores
  
  5120 cuda cores
  
  110000 GFLOPS max compute


Some simple maths gets us to a speed of 11,800 GFLOPS for 25 of these perfectly synced in parallel(not likely or gonna be fun). Vs the 110000 it just isn't even a question.